Pipe



Nov. 25, 1941. P. SULLIVAN PIPE Filed Dec. 27, 1939 ATTORNEYS -the sideof the bowl.

i atnted Nov. 25,

NT cr me;

v PIPE Patrick Sullivan, Brookline, Mass. Application December 27, 1939,Serial N0.-311,160 g 40mins. (01. 131-203):

This invention relates to improvements in a pipe and more particularlyto an improvement which may be incorporated in the manufacture of newpip-es or added to old pipes to'imp'rove the smoking quality of thepipes by eliminating the moisture in a novel manner. Q

It is an object of my invention to provide means for eliminatingmoisture in a pipe which is economical in cost, which does not modifythe exterior shape of the pipe, whicheliminates the tendency to bubblingas the pipe is'smoked and which can be readily removed for cleaning.

It is further an object of my invention to eliminate the moisture in apipe either from the tobacco or from the mouth of the user by causingthe moisture to travel out of the smoke passage into a chamber removedtherefrom in which the moisture will be dried up by the-heat from thebowl. I More specifically it is an object of my invention to provide avertical bore across the smoke passage which forms a chamber in the sideof the bowl, and to mount a capillary absorbent member in the smokepassage and extending into the chamber whereby the moisture will beabsorbed thereby and will be dried out in the chamber outside of thesmoke passage.

Further objects and advantages of my improvements will be more readilyapparent from the following description of a preferred embodimentthereof as disclosed in the attached drawing, in which:

Fig. 1 is a side elevation of the pipe;

Fig. 2 is an exposed View showing a side elevation of the threeprincipal parts of the pipe;

Fig. 3 is a vertical sectional view of the bowl showing the absorbentmember in place;

Fig. 4 is a sectional view taken on the plane indicated 4-4 in Fig. 1;

Fig. 5 is a side elevation of the holder and capillary member; and

Fig. 6 is a similar view of a modified form thereof.

The pipe includes the usual bowl Ill and removable stem I 2. It will beunderstood that the pipe may be made in various shapes other than thestraight pipe shown.

The chamber M of the bowl is formed with annular ridges l6 which tend toprevent packing the tobacco too tightly and tend to prevent the juicefrom the tobacco from running down The bowl part Ill has a short stem l8provided with a smoke passage 20 and the removable stem I2 is formedwith a nipple 22 adapted to fit tightly into the stem 18.

A vertical bore 24 is formed in the leased the bowl extending across thesmoke passage and forming a chamber 26 in the side of the bowl l0. Aninternally threaded bushing'ZB fits tightly in the opening 24; 'A screwplug 30 is removably secured in position by threaded en: gagement withthe plug 28;

The plug 30 has an integral tubular extension 32 having slots 34 in theside wall thereof. The tubular portion 32 forms a holder'for a capillaryabsorbent member 33 which may be a piece of pulp wood or other suitablesubstance such as a short length of cotton wicking or asbestos. Thetubular holder fits closely the entrance to the chamber 26 but is openat its upper end, and the absorbent plug 36 may extend beyond the holderas illustrated to permit ready removal therefrom.

The nipple portion 22 of the stem l2 may be formed with cars 38 adaptedto fit the slot 40 of screw plug 311 so that the stem may be used as ascrew driver to remove the screw plug 30 for cleaning.

Various modified arrangements of theslots'or openings in the holder forthe absorbent may be used, for'example, in Fig.6 the holder 42 is formedwith a spiral slot 44.

It will be noted from Fig.4. that the holder for the absorbent capillarymember .36 extends across the middle of the smoke passage. ,It ispreferable that thearea blocked ofi'by the holder constitute fromone-third to one-half of the entire cross sectional area of the smokepassage. In use, drawing of the smoke from the bowl causes the moisturein the smoke to be absorbed by the capillary member 35 and the moisturewill travel toward the top of the member 35 and will be dried out in thechamber 26 due to the heat from the bowl of the pipe. It should be'particularly noted that there is no pocket or trap formed to collectmoisture, and therefore there is no tendency towards bubbling or othernoisy operation during smoking. The holder 32 is preferably of metalsuch as aluminum and the heating of the metal also assists in drying thesmoke, and in 'drying out the moisture absorbed by the capillary member.The height of the holder 32 may be varied to suit particular conditions,in fact it may be desirable to employ two sizes of holders, either ofwhich may be used depending upon whether the weather is warm or cold. Incold weather it is desirable that the holder be relatively longer thanin warm weather in order to keep the smoke dry.

The device works to some extent as a filter and tends to keep thetobacco in the bowl from entering the stem; should clogging occuradjacent the holder 32 it is only necessary to blow forward through thestem to release the particles of tobacco which may become lodgedadjacent the tube. It is particularly to be noted that my improvementmay be incorporated in pipes as they are manufactured or added to oldpipes without any change in the external shape of the p1pes.

The heating of the metal member within the smoke passage has abeneficial action in drying and sterilizing the smoke even if theabsorbent member is not employed. The metal tube could thus be usedwithout openings in the side wall and if desired to more evenlydistribute-the heat from the upper chamber down to the base of the tube,a liquid such as water or alcohol or a ga ma be; s al d t e ta s.

A Pips hav ng a qw nd sm k Pa s e l a in ro sa d bowk. a d pipe. v n aOpen? m the base i e; P p 1 7 9 h m P sage and a chamber formed in. theside of the bowl above said opening, a, holder mounted in said. openingextending across. said smoke passage and. into. said. chamber, said.holder being smaller in diameter than said smoke. passage whereby thesmoke may flow around said. holder through said passage, and. anabsorbent member carried withm said holder. said holder having openingsto permit the moisture from the smoke to be absorbed, by saidabsorbentmember,

which. moisture will tendtodry out in said chat- 1.

2. A pipe having a bowl and a smoke passage leading from said bowl, anopening formed; in

the base of the pipe, into the smp enassa it a threaded, bushingfixedvin said opening, a tubular me al o de havin a, threaded. h adwhereby said holder is adapted to be remover-1 secured to said bushing,said holder being smaller in diameter than, said, smoke, passagewherebythe, smoke. may, flow around said, holder through said passage, saidpipe having a chamber formed inside of; the bowl above the smoke passageinto which said holder extends, a. cap.- illary absorbent. memberremovably retained within, said holder, the upper. end. of which ex;tends. beyond, the top, of said holder into, said bore forming a smokepassage leading from the bowl to the stem, said. bowl having a chamberformed in the side wall of the bowl and having an entrance opening fromsaid smoke passage, a metallic holder removably secured to the base ofsaid bowl extending across said smoke passage and into said chamber,said holder closelyfitting the entrance opening to said chamber,

said holder being smaller in diameter than said smoke passage wherebythe smoke may flow around said holder, a capillary absorbent membercarried by said holder and projecting above the upper, end of saidholder into, said chamber, said holder. having. an opening, in the sidewall thereof to permit contactlbetween. the smoke and the absorbentmember whereby moisture. and impurities are absorbedby said member anddried out in saidv chamber from the heat. of the bowl,

4. In a; tobacco pipe, the combination ofa bowl and stem, said bowlhaving. a smooth, straight bore forming. a, smoke passage; leading fromthe bowl to. the, stem, said bowlx having achamber formed inasi'dewallof the bowl and having an entrance opening into said smoke passage inthetop. walL thereof, a, metallic holder insertable through, the. base of,said bowl. and. threadedly secured to, theibase of; said, bowl, saidholder extending across said smoke passage into. said chamber and saidholder closely fitting, the entrance tolsaid chamber, said holder'beingsmaller in, diameter thansaid smoke passage where,- by the smoke; is,free to flow. around said holde r,. a pulpwood absorbent member carriedwithin said holder and. projecting above, the: upper end of said holderinto.- said chamber, said holden hayingv openings; in; the side wall:thereofi to permit contactbetween the smoke: and: said: pulpwood. memberwhereby moisture absorbed by, said pul'pwood member; will be dried outat. the upper end of. said; absorbent; member within said chamber.

PATRICK SULLI AN

